Major genetic locus with pleiotropism determined seed-related traits in cultivated and wild soybeans
文献类型： 外文期刊
作者： Yuan, Baoqi 1 ; Qi, Guangxun 1 ; Yuan, Cuiping 1 ; Wang, Yumin 1 ; Zhao, Hongkun 1 ; Li, Yuqiu 1 ; Wang, Yingnan 1 ; Dong, Lingchao 1 ; Dong, Yingshan 1 ; Liu, Xiaodong 2 ;
作者机构： 1.Jilin Acad Agr Sci, Soybean Res Inst, Natl Engn Res Ctr Soybean, Changchun, Jilin, Peoples R China
2.Jilin Agr Univ, Coll Agron, Changchun, Jilin, Peoples R China
3.Jilin Acad Agr Sci, Crop Germplasm Inst, Changchun, Jilin, Peoples R China
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.4； 五年影响因子：5.7 ）
ISSN： 0040-5752
年卷期： 2023 年 136 卷 6 期
页码：
收录情况： SCI
摘要： Key messageHere, a novel pleiotropic QTL qSS14 simultaneously regulating four seed size traits and two consistently detected QTLs qSW17 and qSLW02 were identified across multiple years.Seed-related traits were the key agronomic traits that have been artificially selected during the domestication of wild soybean. Identifying the genetic loci and genes that regulate seed size could clarify the genetic variations in seed-related traits and provide novel insights into high-yield soybean breeding. In this study, we used a high-density genetic map constructed by F-10 RIL populations from a cross between Glycinemax and Glycinesoja to detect additive QTLs for seven seed-related traits over the last three years. As a result, we identified one novel pleiotropic QTL, qSS14, that simultaneously controlled four seed size traits (100-seed weight, seed length, seed width, and seed thickness) and two consistently detected QTLs, qSW17, and qSLW02, in multiple years of phenotypic data. Furthermore, we predicted two, two and three candidate genes within these three critical loci based on the parental resequencing data and gene function annotations. And the relative expression of four candidate genes GLYMA_14G155100, GLYMA_17G061000, GLYMA_02G273100, and GLYMA_02G273300 showed significant differences among parents and the extreme materials through qRT-PCR analysis. These findings could facilitate the determination of beneficial genes in wild soybean and contribute to our understanding of the soybean domestication process.
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